air bubbles

SeabeeDan
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air bubbles

30 Nov 2013 14:04

I have an 81 kz305. there's a clear fuel line with a fuel filter coming directly from the tank, if I move the line I can see air bubbles coming into the fuel tank from the carb. is this normal, doesn't seem like it should be happening. first thing to check?

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sbc1320
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Re: air bubbles

30 Nov 2013 15:40

#614488

Doesn't hurt anything, sometimes they burp out of there or even work there way up the line. I just put new clear yellow fuel line on mine and mine does it. No lean issues at all on mine.

1980 KZ1000 LTD-B4(MK II engine) - Progressive suspension, MTC pistons, Dynojet Stage III, all wear items replaced, WFO paint scheme(1978), etc..

Past bikes- 2 1976 Kz900's, 5 1975-76 Honda CB750's, Honda 500 -4, Honda 250, Honda 125, Honda 100, Suzuki RM 250, Honda XL350, Kawasaki KLR 650, etc..

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Cynjut
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Re: air bubbles

02 Dec 2013 11:54

#614630

There should be vents into the bowls on your carbs to help prevent this. It shouldn't hurt anything, especially if you are using an in-line filter.

1977 KZ-1000 A1
1982 KZ-1000 M2 Frankenbike

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SeabeeDan
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Re: air bubbles

03 Dec 2013 15:46

#614713

Cool, thanks guys. I'm just learning about carbs and air in the fuel line just didn't look right to me

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JR
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Re: air bubbles

03 Dec 2013 19:34

#614728

Bubbles used to bother me until I got black opaque fuel line :whistle:

1980 kz750E1, Delkevic exhaust

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